73% (2008)

60% (2008)

72% (2007)

68% (2006)

32% (2008)

67% (2002)

66% (2007)

61% (2009)

59% (2008)

67% (2006)

55% (2008)

53% (2008)

63% (2002)

40% (2007)

61% (2000)

62% (2003)

52% (2004)

52% (2007)

41% (2003)

53% (2007)